Yep, they could easily add this to their donation system, I am kind of surprised they didn't do this already.

Hell, this is one instance where they wouldn't even have to be sneaky about this like some scummier apps.

A big "Post this donation on my facebook page" checkbox/link etc would be enough since a good number of people would probably want that feature.

It seems we are living in an age of increasing open'ness (dare I say narcissism?). Might as well harness it.

Because the vast majority of UNICEF money comes from having friends inside governments and employing the -usually moronic- kids of foreign government officials, to give them salaries exceeding the President's pay.

Just like most worthy causes, money comes from relatively few (still hundreds to thousands in the UNICEF case) very big donors. Small donations just transfer money to banks.

All they would have to do is ask; surely someone would be willing to build something simple like this for them as a contribution.